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Finding the Fourth Proportional to 1,444.03, 2,164.83 and 980.51

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Solution

The fourth proportional to 1,444.03, 2,164.83 and 980.51 is: 1,469.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,444.03 : 2,164.83 = 980.51 : x
  2. Step 2: Convert to fraction form
    1,444.03/2,164.83 = 980.51/x
  3. Step 3: Cross multiply
    1,444.03x = 2,164.83 × 980.51
  4. Step 4: Simplify right side
    1,444.03x = 2,122,622.96
  5. Step 5: Solve for x
    x = 2,122,622.96/1,444.03
  6. Step 6: Final answer
    x = 1,469.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.